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Finding the Fourth Proportional to 229,195.94, 316,295.85 and 128,601.38

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Solution

The fourth proportional to 229,195.94, 316,295.85 and 128,601.38 is: 177,472.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,195.94 : 316,295.85 = 128,601.38 : x
  2. Step 2: Convert to fraction form
    229,195.94/316,295.85 = 128,601.38/x
  3. Step 3: Cross multiply
    229,195.94x = 316,295.85 × 128,601.38
  4. Step 4: Simplify right side
    229,195.94x = 40,676,082,798.27
  5. Step 5: Solve for x
    x = 40,676,082,798.27/229,195.94
  6. Step 6: Final answer
    x = 177,472.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.